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Finding the Fourth Proportional to 63,717.90, 87,931.07 and 35,038.13

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Solution

The fourth proportional to 63,717.90, 87,931.07 and 35,038.13 is: 48,352.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,717.90 : 87,931.07 = 35,038.13 : x
  2. Step 2: Convert to fraction form
    63,717.90/87,931.07 = 35,038.13/x
  3. Step 3: Cross multiply
    63,717.90x = 87,931.07 × 35,038.13
  4. Step 4: Simplify right side
    63,717.90x = 3,080,940,396.51
  5. Step 5: Solve for x
    x = 3,080,940,396.51/63,717.90
  6. Step 6: Final answer
    x = 48,352.82

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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.