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Finding the Fourth Proportional to 70,341.80, 97,116.98 and 62,775.16

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Solution

The fourth proportional to 70,341.80, 97,116.98 and 62,775.16 is: 86,670.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,341.80 : 97,116.98 = 62,775.16 : x
  2. Step 2: Convert to fraction form
    70,341.80/97,116.98 = 62,775.16/x
  3. Step 3: Cross multiply
    70,341.80x = 97,116.98 × 62,775.16
  4. Step 4: Simplify right side
    70,341.80x = 6,096,533,958.22
  5. Step 5: Solve for x
    x = 6,096,533,958.22/70,341.80
  6. Step 6: Final answer
    x = 86,670.14

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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.