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Finding the Fourth Proportional to 70,883.37, 97,810.74 and 40,663.89

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Solution

The fourth proportional to 70,883.37, 97,810.74 and 40,663.89 is: 56,111.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,883.37 : 97,810.74 = 40,663.89 : x
  2. Step 2: Convert to fraction form
    70,883.37/97,810.74 = 40,663.89/x
  3. Step 3: Cross multiply
    70,883.37x = 97,810.74 × 40,663.89
  4. Step 4: Simplify right side
    70,883.37x = 3,977,365,172.18
  5. Step 5: Solve for x
    x = 3,977,365,172.18/70,883.37
  6. Step 6: Final answer
    x = 56,111.40

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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.