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Finding the Fourth Proportional to 34,830.99, 48,065.48 and 18,915.10

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Solution

The fourth proportional to 34,830.99, 48,065.48 and 18,915.10 is: 26,102.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,830.99 : 48,065.48 = 18,915.10 : x
  2. Step 2: Convert to fraction form
    34,830.99/48,065.48 = 18,915.10/x
  3. Step 3: Cross multiply
    34,830.99x = 48,065.48 × 18,915.10
  4. Step 4: Simplify right side
    34,830.99x = 909,163,360.75
  5. Step 5: Solve for x
    x = 909,163,360.75/34,830.99
  6. Step 6: Final answer
    x = 26,102.14

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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.