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Finding the Fourth Proportional to 92,971.99, 139,459.74 and 26,412.40

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Solution

The fourth proportional to 92,971.99, 139,459.74 and 26,412.40 is: 39,619.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,971.99 : 139,459.74 = 26,412.40 : x
  2. Step 2: Convert to fraction form
    92,971.99/139,459.74 = 26,412.40/x
  3. Step 3: Cross multiply
    92,971.99x = 139,459.74 × 26,412.40
  4. Step 4: Simplify right side
    92,971.99x = 3,683,466,436.78
  5. Step 5: Solve for x
    x = 3,683,466,436.78/92,971.99
  6. Step 6: Final answer
    x = 39,619.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.