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Finding the Fourth Proportional to 25,375,615.16, 35,017,410.76 and 13,772,931.32

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Solution

The fourth proportional to 25,375,615.16, 35,017,410.76 and 13,772,931.32 is: 19,006,136.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,375,615.16 : 35,017,410.76 = 13,772,931.32 : x
  2. Step 2: Convert to fraction form
    25,375,615.16/35,017,410.76 = 13,772,931.32/x
  3. Step 3: Cross multiply
    25,375,615.16x = 35,017,410.76 × 13,772,931.32
  4. Step 4: Simplify right side
    25,375,615.16x = 482,292,393,401,709
  5. Step 5: Solve for x
    x = 482,292,393,401,709/25,375,615.16
  6. Step 6: Final answer
    x = 19,006,136.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.