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Finding the Fourth Proportional to 70,632.76, 97,482.54 and 45,555.16

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Solution

The fourth proportional to 70,632.76, 97,482.54 and 45,555.16 is: 62,872.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,632.76 : 97,482.54 = 45,555.16 : x
  2. Step 2: Convert to fraction form
    70,632.76/97,482.54 = 45,555.16/x
  3. Step 3: Cross multiply
    70,632.76x = 97,482.54 × 45,555.16
  4. Step 4: Simplify right side
    70,632.76x = 4,440,832,706.91
  5. Step 5: Solve for x
    x = 4,440,832,706.91/70,632.76
  6. Step 6: Final answer
    x = 62,872.14

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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.