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Finding the Fourth Proportional to 63,989.49, 88,307.90 and 35,700.64

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Solution

The fourth proportional to 63,989.49, 88,307.90 and 35,700.64 is: 49,268.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,989.49 : 88,307.90 = 35,700.64 : x
  2. Step 2: Convert to fraction form
    63,989.49/88,307.90 = 35,700.64/x
  3. Step 3: Cross multiply
    63,989.49x = 88,307.90 × 35,700.64
  4. Step 4: Simplify right side
    63,989.49x = 3,152,648,547.06
  5. Step 5: Solve for x
    x = 3,152,648,547.06/63,989.49
  6. Step 6: Final answer
    x = 49,268.22

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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.