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Finding the Fourth Proportional to 35,130.32, 48,479.80 and 19,214.90

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Solution

The fourth proportional to 35,130.32, 48,479.80 and 19,214.90 is: 26,516.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,130.32 : 48,479.80 = 19,214.90 : x
  2. Step 2: Convert to fraction form
    35,130.32/48,479.80 = 19,214.90/x
  3. Step 3: Cross multiply
    35,130.32x = 48,479.80 × 19,214.90
  4. Step 4: Simplify right side
    35,130.32x = 931,534,509.02
  5. Step 5: Solve for x
    x = 931,534,509.02/35,130.32
  6. Step 6: Final answer
    x = 26,516.54

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1.5x scale

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.