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Finding the Fourth Proportional to 64,967.04, 89,626.56 and 38,117.76

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Solution

The fourth proportional to 64,967.04, 89,626.56 and 38,117.76 is: 52,586.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,967.04 : 89,626.56 = 38,117.76 : x
  2. Step 2: Convert to fraction form
    64,967.04/89,626.56 = 38,117.76/x
  3. Step 3: Cross multiply
    64,967.04x = 89,626.56 × 38,117.76
  4. Step 4: Simplify right side
    64,967.04x = 3,416,363,703.71
  5. Step 5: Solve for x
    x = 3,416,363,703.71/64,967.04
  6. Step 6: Final answer
    x = 52,586.11

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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.